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Method for forming a shaped nonwoven

A technology for non-woven fabrics and products, applied in non-woven fabrics, textiles and papermaking, fiber processing, etc., can solve problems such as deviation and uneven distribution of fiber blocks

Active Publication Date: 2022-07-08
DILO MASCHF OSKAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It has been proven that in this type of contouring unit no particularly tight connections are produced in the transverse direction of the nonwoven produced via fiber bridges, so that inhomogeneities and the desired fiber masses eventually occur distribution deviation
In addition, the transition between fiber deposits spread by two adjacently arranged supply sections may be partly relatively skipped

Method used

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  • Method for forming a shaped nonwoven
  • Method for forming a shaped nonwoven
  • Method for forming a shaped nonwoven

Examples

Experimental program
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Embodiment Construction

[0031] In the context of this specification, the term "nonwoven" is intended to include all possible collections of fibers or fiber batts, which also include fiber batts and piles. The term "nonwoven intermediate product" also includes discontinuous accumulations of fibers. For example, the nonwoven intermediate product may be formed from strips of nonwoven that are spaced apart from each other.

[0032] refer to figure 1 The flow of the method according to the invention is exemplarily described. By means of the supply device 22 , the shaped nonwoven intermediate product 78 is formed on the transport device 10 , which preferably moves continuously in the transport direction T. The conveyor device 10 can be designed as a conveyor belt and preferably as a screen belt with lower suction. The speed of the conveyor 10 is preferably in the range of 0.2 to 20 m / min, more preferably in the range of 0.5 to 10 m / min. The shaped nonwoven intermediate product 78 can be arbitrarily sha...

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PUM

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Abstract

A method for forming a shaped nonwoven fabric (80), comprising supplying fibers or fiber batts in a supply device (22) onto a raw nonwoven fabric (12) conveyed to the supply device (22), or directly onto the transfer device (10) and, including a supply step, form a shaped nonwoven intermediate product (78). Next, the method further includes decomposing the shaped nonwoven intermediate product (78) in the decomposition unit (40) and supplying the decomposed fibers or fiber batts of the shaped nonwoven intermediate product (78) to the base nonwoven (78). 66), or directly to the conveying device (16), and forming the shaped nonwoven (80) with the steps of disintegration and supply included.

Description

technical field [0001] The present invention relates to a method of forming a shaped nonwoven. Background technique [0002] In certain fields of application for forming nonwovens, it may be desirable to produce nonwovens having a predetermined non-uniform transverse profile and / or longitudinal profile. An example of application is the production of components for motor vehicle linings. [0003] For the production of shaped nonwovens, for example, EP 2 695 976 A1 describes a feeding device for feeding disintegrated fibers to a conveying device, the feeding device having a plurality of horizontally adjacently arranged feeding sections . Each supply section is assigned an individually controllable draw roll, which pulls the corresponding fibrous substrate, which is then broken down into individual fibers or fiber flocks by means of an open-width roll Spread on the conveyor. In this way, shaped nonwoven webs can be produced by different actuation of the draw rolls in the su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/70D04H3/02D04H5/08D04H5/02D04H3/105D04H1/46
CPCD04H1/46D04H1/70D04H3/02D04H3/105D04H5/02D04H5/08D04H1/736D01G23/02
Inventor 约翰·菲利普·迪罗
Owner DILO MASCHF OSKAR